Gravitational wave detection with high frequency phonon trapping acoustic cavities

Maxim Goryachev and Michael E. Tobar
Phys. Rev. D 90, 102005 – Published 24 November 2014; Erratum Phys. Rev. D 108, 129901 (2023)

Abstract

There are a number of theoretical predictions for astrophysical and cosmological objects, which emit high frequency (106109  Hz) gravitation waves (GW) or contribute somehow to the stochastic high frequency GW background. Here we propose a new sensitive detector in this frequency band, which is based on existing cryogenic ultrahigh quality factor quartz bulk acoustic wave cavity technology, coupled to near-quantum-limited SQUID amplifiers at 20 mK. We show that spectral strain sensitivities reaching 1022 per Hz per mode is possible, which in principle can cover the frequency range with multiple (>100) modes with quality factors varying between 106 and 1010 allowing wide bandwidth detection. Due to its compactness and well-established manufacturing process, the system is easily scalable into arrays and distributed networks that can also impact the overall sensitivity and introduce coincidence analysis to ensure no false detections.

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  • Received 25 September 2014

DOI:https://doi.org/10.1103/PhysRevD.90.102005

© 2014 American Physical Society

Erratum

Authors & Affiliations

Maxim Goryachev and Michael E. Tobar*

  • ARC Centre of Excellence for Engineered Quantum Systems, School of Physics, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia

  • *michael.tobar@uwa.edu.au

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Issue

Vol. 90, Iss. 10 — 15 November 2014

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